000010102 001__ 10102
000010102 005__ 20141205154144.0
000010102 04107 $$aeng
000010102 046__ $$k2008-10-12
000010102 100__ $$aGoksu, Caglar
000010102 24500 $$aSeismic Behavior of Low Strength RC Columns with Corroded Plain Reinforcing Bars

000010102 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010102 260__ $$b
000010102 506__ $$arestricted
000010102 520__ $$2eng$$aOne of the major issues of construction industry is the rehabilitation of the old and deteriorating stock of structures. Corrosion of reinforcing bars and the resultant cracks of concrete members are among the most common reasons of damage that require repairing, particularly in humid environments and/or where quality of concrete is relatively low. Corrosion of reinforcement and related losses in strength and bond between concrete and reinforcing bars may increase the seismic vulnerability of existing reinforced concrete structures significantly. This paper reports the preliminary results of an experimental study on the seismic behavior of low strength reinforced concrete columns with corroded plain reinforcing bars. The specimens represent typical low strength rc columns in Turkey and many other developing countries. The specimens with plain longitudinal and transverse bars had an average concrete compressive strength less than 10 MPa, as well as insufficient amount of transverse bars in the potential plastic hinge regions. After casting, during which 4% calcium chloride was added in the mixture, the columns were subjected to accelerated corrosion process through application of electrical current. Finally, the specimens were tested under constant axial load and reversed cyclic flexure at three different levels of corrosion, as well as no corrosion case. Based on the results of the experimental study, it was understood that the corrosion of reinforcing bars effected the behavior of the low strength reinforced concrete columns significantly, particularly due to the condition of bond between concrete and steel reinforcement. It should be noted that the bond strength was already low in no corrosion case due to low quality of concrete and plain surfaces of reinforcing bars.

000010102 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010102 653__ $$abond, column, corrosion, cyclic, seismic, reinforced concrete 

000010102 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010102 720__ $$aGoksu, Caglar$$iDemirtas, Bahadir$$iDemir, Cem$$iIlki, Alper$$iKumbasar, Nahit
000010102 8560_ $$ffischerc@itam.cas.cz
000010102 8564_ $$s481229$$uhttps://invenio.itam.cas.cz/record/10102/files/12-01-0089.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 12-01-0089.
000010102 962__ $$r9324
000010102 980__ $$aPAPER